Finding the Fourth Proportional to 191,442.55, 264,196.88 and 105,410.63

Step by Step Solution

1. Step 1: Write the proportion equation
   191,442.55 : 264,196.88 = 105,410.63 : x
2. Step 2: Convert to fraction form
   191,442.55/264,196.88 = 105,410.63/x
3. Step 3: Cross multiply
   191,442.55x = 264,196.88 × 105,410.63
4. Step 4: Simplify right side
   191,442.55x = 27,849,159,564.83
5. Step 5: Solve for x
   x = 27,849,159,564.83/191,442.55
6. Step 6: Final answer
   x = 145,470.06