Finding the Fourth Proportional to 140,720,404.50, 211,083,672.18 and 99,051,000.18

Step by Step Solution

1. Step 1: Write the proportion equation
   140,720,404.50 : 211,083,672.18 = 99,051,000.18 : x
2. Step 2: Convert to fraction form
   140,720,404.50/211,083,672.18 = 99,051,000.18/x
3. Step 3: Cross multiply
   140,720,404.50x = 211,083,672.18 × 99,051,000.18
4. Step 4: Simplify right side
   140,720,404.50x = 20,908,048,851,096,244
5. Step 5: Solve for x
   x = 20,908,048,851,096,244/140,720,404.50
6. Step 6: Final answer
   x = 148,578,657.98