Finding the Fourth Proportional to 101,499.18, 140,066.91 and 56,177.16

Step by Step Solution

1. Step 1: Write the proportion equation
   101,499.18 : 140,066.91 = 56,177.16 : x
2. Step 2: Convert to fraction form
   101,499.18/140,066.91 = 56,177.16/x
3. Step 3: Cross multiply
   101,499.18x = 140,066.91 × 56,177.16
4. Step 4: Simplify right side
   101,499.18x = 7,868,561,213.78
5. Step 5: Solve for x
   x = 7,868,561,213.78/101,499.18
6. Step 6: Final answer
   x = 77,523.40