Finding the Fourth Proportional to 372,166,221.30, 558,249,200.55 and 99,529,902.42

Step by Step Solution

1. Step 1: Write the proportion equation
   372,166,221.30 : 558,249,200.55 = 99,529,902.42 : x
2. Step 2: Convert to fraction form
   372,166,221.30/558,249,200.55 = 99,529,902.42/x
3. Step 3: Cross multiply
   372,166,221.30x = 558,249,200.55 × 99,529,902.42
4. Step 4: Simplify right side
   372,166,221.30x = 55,562,488,456,784,504
5. Step 5: Solve for x
   x = 55,562,488,456,784,504/372,166,221.30
6. Step 6: Final answer
   x = 149,294,818.49