Finding the Fourth Proportional to 211,483.34, 291,848.46 and 115,990.72

Step by Step Solution

1. Step 1: Write the proportion equation
   211,483.34 : 291,848.46 = 115,990.72 : x
2. Step 2: Convert to fraction form
   211,483.34/291,848.46 = 115,990.72/x
3. Step 3: Cross multiply
   211,483.34x = 291,848.46 × 115,990.72
4. Step 4: Simplify right side
   211,483.34x = 33,851,713,006.29
5. Step 5: Solve for x
   x = 33,851,713,006.29/211,483.34
6. Step 6: Final answer
   x = 160,067.99