Finding the Fourth Proportional to 372,376.61, 558,411.82 and 147,706.10

Step by Step Solution

1. Step 1: Write the proportion equation
   372,376.61 : 558,411.82 = 147,706.10 : x
2. Step 2: Convert to fraction form
   372,376.61/558,411.82 = 147,706.10/x
3. Step 3: Cross multiply
   372,376.61x = 558,411.82 × 147,706.10
4. Step 4: Simplify right side
   372,376.61x = 82,480,831,058.82
5. Step 5: Solve for x
   x = 82,480,831,058.82/372,376.61
6. Step 6: Final answer
   x = 221,498.42