Finding the Fourth Proportional to 56,816.01, 78,402.43 and 31,322.60

Step by Step Solution

1. Step 1: Write the proportion equation
   56,816.01 : 78,402.43 = 31,322.60 : x
2. Step 2: Convert to fraction form
   56,816.01/78,402.43 = 31,322.60/x
3. Step 3: Cross multiply
   56,816.01x = 78,402.43 × 31,322.60
4. Step 4: Simplify right side
   56,816.01x = 2,455,767,953.92
5. Step 5: Solve for x
   x = 2,455,767,953.92/56,816.01
6. Step 6: Final answer
   x = 43,223.17