Finding the Fourth Proportional to 155,591,565.10, 233,227,915.35 and 90,862,051.30

Step by Step Solution

1. Step 1: Write the proportion equation
   155,591,565.10 : 233,227,915.35 = 90,862,051.30 : x
2. Step 2: Convert to fraction form
   155,591,565.10/233,227,915.35 = 90,862,051.30/x
3. Step 3: Cross multiply
   155,591,565.10x = 233,227,915.35 × 90,862,051.30
4. Step 4: Simplify right side
   155,591,565.10x = 21,191,566,809,123,756
5. Step 5: Solve for x
   x = 21,191,566,809,123,756/155,591,565.10
6. Step 6: Final answer
   x = 136,199,971.99