Finding the Fourth Proportional to 288,380,587.94, 397,963,507.83 and 156,224,103.02

Step by Step Solution

1. Step 1: Write the proportion equation
   288,380,587.94 : 397,963,507.83 = 156,224,103.02 : x
2. Step 2: Convert to fraction form
   288,380,587.94/397,963,507.83 = 156,224,103.02/x
3. Step 3: Cross multiply
   288,380,587.94x = 397,963,507.83 × 156,224,103.02
4. Step 4: Simplify right side
   288,380,587.94x = 62,171,492,045,434,496
5. Step 5: Solve for x
   x = 62,171,492,045,434,496/288,380,587.94
6. Step 6: Final answer
   x = 215,588,339.32