Finding the Fourth Proportional to 72,307,815.74, 99,799,268.91 and 42,955,454.51

Step by Step Solution

1. Step 1: Write the proportion equation
   72,307,815.74 : 99,799,268.91 = 42,955,454.51 : x
2. Step 2: Convert to fraction form
   72,307,815.74/99,799,268.91 = 42,955,454.51/x
3. Step 3: Cross multiply
   72,307,815.74x = 99,799,268.91 × 42,955,454.51
4. Step 4: Simplify right side
   72,307,815.74x = 4,286,922,955,794,762
5. Step 5: Solve for x
   x = 4,286,922,955,794,762/72,307,815.74
6. Step 6: Final answer
   x = 59,287,131.16