Finding the Fourth Proportional to 72,070,137.39, 99,456,259.17 and 39,029,620.03

Step by Step Solution

1. Step 1: Write the proportion equation
   72,070,137.39 : 99,456,259.17 = 39,029,620.03 : x
2. Step 2: Convert to fraction form
   72,070,137.39/99,456,259.17 = 39,029,620.03/x
3. Step 3: Cross multiply
   72,070,137.39x = 99,456,259.17 × 39,029,620.03
4. Step 4: Simplify right side
   72,070,137.39x = 3,881,740,005,010,303.50
5. Step 5: Solve for x
   x = 3,881,740,005,010,303.50/72,070,137.39
6. Step 6: Final answer
   x = 53,860,588.39