Finding the Fourth Proportional to 163,900,514.72, 226,179,978.30 and 89,559,442.10

Step by Step Solution

1. Step 1: Write the proportion equation
   163,900,514.72 : 226,179,978.30 = 89,559,442.10 : x
2. Step 2: Convert to fraction form
   163,900,514.72/226,179,978.30 = 89,559,442.10/x
3. Step 3: Cross multiply
   163,900,514.72x = 226,179,978.30 × 89,559,442.10
4. Step 4: Simplify right side
   163,900,514.72x = 20,256,552,670,738,108
5. Step 5: Solve for x
   x = 20,256,552,670,738,108/163,900,514.72
6. Step 6: Final answer
   x = 123,590,537.26