Finding the Fourth Proportional to 56,153, 77,491.14 and 31,002.68

Step by Step Solution

1. Step 1: Write the proportion equation
   56,153 : 77,491.14 = 31,002.68 : x
2. Step 2: Convert to fraction form
   56,153/77,491.14 = 31,002.68/x
3. Step 3: Cross multiply
   56,153x = 77,491.14 × 31,002.68
4. Step 4: Simplify right side
   56,153x = 2,402,433,016.26
5. Step 5: Solve for x
   x = 2,402,433,016.26/56,153
6. Step 6: Final answer
   x = 42,783.70