Finding the Fourth Proportional to 72,259,288.74, 99,719,301.69 and 40,897,337.22

Step by Step Solution

1. Step 1: Write the proportion equation
   72,259,288.74 : 99,719,301.69 = 40,897,337.22 : x
2. Step 2: Convert to fraction form
   72,259,288.74/99,719,301.69 = 40,897,337.22/x
3. Step 3: Cross multiply
   72,259,288.74x = 99,719,301.69 × 40,897,337.22
4. Step 4: Simplify right side
   72,259,288.74x = 4,078,253,908,558,845.50
5. Step 5: Solve for x
   x = 4,078,253,908,558,845.50/72,259,288.74
6. Step 6: Final answer
   x = 56,439,164.84