Finding the Fourth Proportional to 56,697.60, 78,242.58 and 31,547.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,697.60 : 78,242.58 = 31,547.10 : x
2. Step 2: Convert to fraction form
   56,697.60/78,242.58 = 31,547.10/x
3. Step 3: Cross multiply
   56,697.60x = 78,242.58 × 31,547.10
4. Step 4: Simplify right side
   56,697.60x = 2,468,326,495.52
5. Step 5: Solve for x
   x = 2,468,326,495.52/56,697.60
6. Step 6: Final answer
   x = 43,534.94