Finding the Fourth Proportional to 72,227,829,436.21, 99,674,637,528.27 and 40,113,191,590.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,227,829,436.21 : 99,674,637,528.27 = 40,113,191,590.50 : x
2. Step 2: Convert to fraction form
   72,227,829,436.21/99,674,637,528.27 = 40,113,191,590.50/x
3. Step 3: Cross multiply
   72,227,829,436.21x = 99,674,637,528.27 × 40,113,191,590.50
4. Step 4: Simplify right side
   72,227,829,436.21x = 3,998,267,831,884,638,060,544
5. Step 5: Solve for x
   x = 3,998,267,831,884,638,060,544/72,227,829,436.21
6. Step 6: Final answer
   x = 55,356,333,744.13