Finding the Fourth Proportional to 122,439.34, 183,715.50 and 55,899.86

Step by Step Solution

1. Step 1: Write the proportion equation
   122,439.34 : 183,715.50 = 55,899.86 : x
2. Step 2: Convert to fraction form
   122,439.34/183,715.50 = 55,899.86/x
3. Step 3: Cross multiply
   122,439.34x = 183,715.50 × 55,899.86
4. Step 4: Simplify right side
   122,439.34x = 10,269,670,729.83
5. Step 5: Solve for x
   x = 10,269,670,729.83/122,439.34
6. Step 6: Final answer
   x = 83,875.58