Finding the Fourth Proportional to 72,307,817.74, 99,799,271.68 and 42,955,456.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,307,817.74 : 99,799,271.68 = 42,955,456.52 : x
2. Step 2: Convert to fraction form
   72,307,817.74/99,799,271.68 = 42,955,456.52/x
3. Step 3: Cross multiply
   72,307,817.74x = 99,799,271.68 × 42,955,456.52
4. Step 4: Simplify right side
   72,307,817.74x = 4,286,923,275,377,908
5. Step 5: Solve for x
   x = 4,286,923,275,377,908/72,307,817.74
6. Step 6: Final answer
   x = 59,287,133.94