Finding the Fourth Proportional to 111,707,796.90, 167,561,695.35 and 103,645,640.10

Step by Step Solution

1. Step 1: Write the proportion equation
   111,707,796.90 : 167,561,695.35 = 103,645,640.10 : x
2. Step 2: Convert to fraction form
   111,707,796.90/167,561,695.35 = 103,645,640.10/x
3. Step 3: Cross multiply
   111,707,796.90x = 167,561,695.35 × 103,645,640.10
4. Step 4: Simplify right side
   111,707,796.90x = 17,367,039,170,791,942
5. Step 5: Solve for x
   x = 17,367,039,170,791,942/111,707,796.90
6. Step 6: Final answer
   x = 155,468,460.15