Finding the Fourth Proportional to 101,384.13, 139,897.89 and 56,055.99

Step by Step Solution

1. Step 1: Write the proportion equation
   101,384.13 : 139,897.89 = 56,055.99 : x
2. Step 2: Convert to fraction form
   101,384.13/139,897.89 = 56,055.99/x
3. Step 3: Cross multiply
   101,384.13x = 139,897.89 × 56,055.99
4. Step 4: Simplify right side
   101,384.13x = 7,842,114,722.86
5. Step 5: Solve for x
   x = 7,842,114,722.86/101,384.13
6. Step 6: Final answer
   x = 77,350.52