Finding the Fourth Proportional to 364,536,155.32, 503,061,164.34 and 197,272,374.80

Step by Step Solution

1. Step 1: Write the proportion equation
   364,536,155.32 : 503,061,164.34 = 197,272,374.80 : x
2. Step 2: Convert to fraction form
   364,536,155.32/503,061,164.34 = 197,272,374.80/x
3. Step 3: Cross multiply
   364,536,155.32x = 503,061,164.34 × 197,272,374.80
4. Step 4: Simplify right side
   364,536,155.32x = 99,240,070,559,004,880
5. Step 5: Solve for x
   x = 99,240,070,559,004,880/364,536,155.32
6. Step 6: Final answer
   x = 272,236,564.50