Finding the Fourth Proportional to 501,131.18, 751,807.34 and 146,172.98

Step by Step Solution

1. Step 1: Write the proportion equation
   501,131.18 : 751,807.34 = 146,172.98 : x
2. Step 2: Convert to fraction form
   501,131.18/751,807.34 = 146,172.98/x
3. Step 3: Cross multiply
   501,131.18x = 751,807.34 × 146,172.98
4. Step 4: Simplify right side
   501,131.18x = 109,893,920,970.48
5. Step 5: Solve for x
   x = 109,893,920,970.48/501,131.18
6. Step 6: Final answer
   x = 219,291.72