Finding the Fourth Proportional to 83,123.63, 114,619.89 and 56,219.43

Step by Step Solution

1. Step 1: Write the proportion equation
   83,123.63 : 114,619.89 = 56,219.43 : x
2. Step 2: Convert to fraction form
   83,123.63/114,619.89 = 56,219.43/x
3. Step 3: Cross multiply
   83,123.63x = 114,619.89 × 56,219.43
4. Step 4: Simplify right side
   83,123.63x = 6,443,865,523.11
5. Step 5: Solve for x
   x = 6,443,865,523.11/83,123.63
6. Step 6: Final answer
   x = 77,521.46