Finding the Fourth Proportional to 56,816.50, 78,407.14 and 31,667.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,816.50 : 78,407.14 = 31,667.62 : x
2. Step 2: Convert to fraction form
   56,816.50/78,407.14 = 31,667.62/x
3. Step 3: Cross multiply
   56,816.50x = 78,407.14 × 31,667.62
4. Step 4: Simplify right side
   56,816.50x = 2,482,967,514.81
5. Step 5: Solve for x
   x = 2,482,967,514.81/56,816.50
6. Step 6: Final answer
   x = 43,701.52