Finding the Fourth Proportional to 72,354,391.49, 99,837,820.28 and 42,984,969.23

Step by Step Solution

1. Step 1: Write the proportion equation
   72,354,391.49 : 99,837,820.28 = 42,984,969.23 : x
2. Step 2: Convert to fraction form
   72,354,391.49/99,837,820.28 = 42,984,969.23/x
3. Step 3: Cross multiply
   72,354,391.49x = 99,837,820.28 × 42,984,969.23
4. Step 4: Simplify right side
   72,354,391.49x = 4,291,525,633,083,127
5. Step 5: Solve for x
   x = 4,291,525,633,083,127/72,354,391.49
6. Step 6: Final answer
   x = 59,312,579.99