Finding the Fourth Proportional to 73,810.10, 101,906.96 and 56,784.31

Step by Step Solution

1. Step 1: Write the proportion equation
   73,810.10 : 101,906.96 = 56,784.31 : x
2. Step 2: Convert to fraction form
   73,810.10/101,906.96 = 56,784.31/x
3. Step 3: Cross multiply
   73,810.10x = 101,906.96 × 56,784.31
4. Step 4: Simplify right side
   73,810.10x = 5,786,716,294.99
5. Step 5: Solve for x
   x = 5,786,716,294.99/73,810.10
6. Step 6: Final answer
   x = 78,400.06