Finding the Fourth Proportional to 149,150.52, 223,521.18 and 78,889.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,150.52 : 223,521.18 = 78,889.50 : x
2. Step 2: Convert to fraction form
   149,150.52/223,521.18 = 78,889.50/x
3. Step 3: Cross multiply
   149,150.52x = 223,521.18 × 78,889.50
4. Step 4: Simplify right side
   149,150.52x = 17,633,474,129.61
5. Step 5: Solve for x
   x = 17,633,474,129.61/149,150.52
6. Step 6: Final answer
   x = 118,226.03